These plans are to be used in conjunction with the current class rules that may supersede some of the dimensions and redefine the tolerances.
They are supplied for guidance only and the official aluminium templates take precedence. This is due to the possibility of the drawings distorting during the printing
http://okdia.org/boat/documents/Plans_OK-Dinghy-hull-1986.pdf
http://okdia.org/boat/documents/Plans_OK-Dinghy-stem-and-foils-1986.pdf
Plans_OK-Dinghy-hull-1986 Plans_OK-Dinghy-stem-and-foils-1986